Overview
Ampersand is a declarative platform for SaaS builders who are creating product integrations. It allows you to:
- Read data from your customer’s SaaS
- Write data to your customer’s SaaS
- Coming soon: subscribe to events (creates, deletes, and field changes) in your customer’s SaaS
This repo hosts a developer-friendly & type-safe Typescript SDK specifically catered to leverage the Ampersand API.
Summary
Table of Contents
SDK Installation
The SDK can be installed with either npm, pnpm, bun or yarn package managers.
NPM
npm add @amp-labs/sdk-node
PNPM
pnpm add @amp-labs/sdk-node
Bun
bun add @amp-labs/sdk-node
Yarn
yarn add @amp-labs/sdk-node zod
Requirements
For supported JavaScript runtimes, please consult RUNTIMES.md.
SDK Example Usage
Example
import { SDK } from "@amp-labs/sdk-node";
const sdk = new SDK({
apiKeyHeader: "<YOUR_API_KEY_HERE>",
});
async function run() {
const result = await sdk.read.records({
projectIdOrName: "<value>",
integrationId: "<id>",
objectName: "<value>",
requestBody: {
groupRef: "<value>",
mode: "async",
sinceTimestamp: "2024-07-01T18:22:30.323771761Z",
},
});
console.log(result);
}
run();
Authentication
Per-Client Security Schemes
This SDK supports the following security scheme globally:
Name | Type | Scheme |
---|
apiKeyHeader | apiKey | API key |
To authenticate with the API the apiKeyHeader
parameter must be set when initializing the SDK client instance. For example:
import { SDK } from "@amp-labs/sdk-node";
const sdk = new SDK({
apiKeyHeader: "<YOUR_API_KEY_HERE>",
});
async function run() {
const result = await sdk.read.records({
projectIdOrName: "<value>",
integrationId: "<id>",
objectName: "<value>",
requestBody: {
groupRef: "<value>",
mode: "async",
sinceTimestamp: "2024-07-01T18:22:30.323771761Z",
},
});
console.log(result);
}
run();
Available Resources and Operations
Available methods
- list - List connections
- generate - Generate a new connection
- get - Get a connection
- delete - Delete a connection
- create - Create a new consumer
- create - Create a new destination
- list - List destinations
- get - Get a destination
- update - Update a destination
- delete - Delete a destination
- list - List installations
- create - Create a new installation
- get - Get an installation
- delete - Delete an installation
- update - Update an installation
- list - List integrations
- create - Create a new integration
- delete - Delete an integration
- batchUpsert - Batch upsert a group of integrations
- list - List operations
- get - Get an operation
- listLogs - List logs for an operation
- list - List all projects that the API key or user credential has access to
- create - Create a new project
- get - Get a project
- delete - Delete a project
- update - Update a project
- list - List provider apps
- create - Create a new provider app
- delete - Delete a provider app
- update - Update a provider app
- list - List providers
- get - Get provider
- generate - Generate a signed URL to upload a zip file to.
Standalone functions
All the methods listed above are available as standalone functions. These
functions are ideal for use in applications running in the browser, serverless
runtimes or other environments where application bundle size is a primary
concern. When using a bundler to build your application, all unused
functionality will be either excluded from the final bundle or tree-shaken away.
To read more about standalone functions, check FUNCTIONS.md.
Available standalone functions
Retries
Some of the endpoints in this SDK support retries. If you use the SDK without any configuration, it will fall back to the default retry strategy provided by the API. However, the default retry strategy can be overridden on a per-operation basis, or across the entire SDK.
To change the default retry strategy for a single API call, simply provide a retryConfig object to the call:
import { SDK } from "@amp-labs/sdk-node";
const sdk = new SDK({
apiKeyHeader: "<YOUR_API_KEY_HERE>",
});
async function run() {
const result = await sdk.read.records({
projectIdOrName: "<value>",
integrationId: "<id>",
objectName: "<value>",
requestBody: {
groupRef: "<value>",
mode: "async",
sinceTimestamp: "2024-07-01T18:22:30.323771761Z",
},
}, {
retries: {
strategy: "backoff",
backoff: {
initialInterval: 1,
maxInterval: 50,
exponent: 1.1,
maxElapsedTime: 100,
},
retryConnectionErrors: false,
},
});
console.log(result);
}
run();
If you'd like to override the default retry strategy for all operations that support retries, you can provide a retryConfig at SDK initialization:
import { SDK } from "@amp-labs/sdk-node";
const sdk = new SDK({
retryConfig: {
strategy: "backoff",
backoff: {
initialInterval: 1,
maxInterval: 50,
exponent: 1.1,
maxElapsedTime: 100,
},
retryConnectionErrors: false,
},
apiKeyHeader: "<YOUR_API_KEY_HERE>",
});
async function run() {
const result = await sdk.read.records({
projectIdOrName: "<value>",
integrationId: "<id>",
objectName: "<value>",
requestBody: {
groupRef: "<value>",
mode: "async",
sinceTimestamp: "2024-07-01T18:22:30.323771761Z",
},
});
console.log(result);
}
run();
Error Handling
Some methods specify known errors which can be thrown. All the known errors are enumerated in the models/errors/errors.ts
module. The known errors for a method are documented under the Errors tables in SDK docs. For example, the records
method may throw the following errors:
Error Type | Status Code | Content Type |
---|
errors.TriggerReadAPIProblem | 400 | application/json |
errors.TriggerReadReadAPIProblem | 500 | application/json |
errors.APIError | 4XX, 5XX | */* |
If the method throws an error and it is not captured by the known errors, it will default to throwing a APIError
.
import { SDK } from "@amp-labs/sdk-node";
import {
SDKValidationError,
TriggerReadAPIProblem,
TriggerReadReadAPIProblem,
} from "@amp-labs/sdk-node/models/errors";
const sdk = new SDK({
apiKeyHeader: "<YOUR_API_KEY_HERE>",
});
async function run() {
let result;
try {
result = await sdk.read.records({
projectIdOrName: "<value>",
integrationId: "<id>",
objectName: "<value>",
requestBody: {
groupRef: "<value>",
mode: "async",
sinceTimestamp: "2024-07-01T18:22:30.323771761Z",
},
});
console.log(result);
} catch (err) {
switch (true) {
case (err instanceof SDKValidationError): {
console.error(err.pretty());
console.error(err.rawValue);
return;
}
case (err instanceof TriggerReadAPIProblem): {
console.error(err);
return;
}
case (err instanceof TriggerReadReadAPIProblem): {
console.error(err);
return;
}
default: {
throw err;
}
}
}
}
run();
Validation errors can also occur when either method arguments or data returned from the server do not match the expected format. The SDKValidationError
that is thrown as a result will capture the raw value that failed validation in an attribute called rawValue
. Additionally, a pretty()
method is available on this error that can be used to log a nicely formatted multi-line string since validation errors can list many issues and the plain error string may be difficult read when debugging.
In some rare cases, the SDK can fail to get a response from the server or even make the request due to unexpected circumstances such as network conditions. These types of errors are captured in the models/errors/httpclienterrors.ts
module:
HTTP Client Error | Description |
---|
RequestAbortedError | HTTP request was aborted by the client |
RequestTimeoutError | HTTP request timed out due to an AbortSignal signal |
ConnectionError | HTTP client was unable to make a request to a server |
InvalidRequestError | Any input used to create a request is invalid |
UnexpectedClientError | Unrecognised or unexpected error |
Server Selection
Override Server URL Per-Client
The default server can be overridden globally by passing a URL to the serverURL: string
optional parameter when initializing the SDK client instance. For example:
import { SDK } from "@amp-labs/sdk-node";
const sdk = new SDK({
serverURL: "https://read.withampersand.com/v1",
apiKeyHeader: "<YOUR_API_KEY_HERE>",
});
async function run() {
const result = await sdk.read.records({
projectIdOrName: "<value>",
integrationId: "<id>",
objectName: "<value>",
requestBody: {
groupRef: "<value>",
mode: "async",
sinceTimestamp: "2024-07-01T18:22:30.323771761Z",
},
});
console.log(result);
}
run();
Override Server URL Per-Operation
The server URL can also be overridden on a per-operation basis, provided a server list was specified for the operation. For example:
import { SDK } from "@amp-labs/sdk-node";
const sdk = new SDK();
async function run() {
const result = await sdk.oauth.connect({
providerWorkspaceRef: "salesforce-instance-domain",
projectId: "<id>",
groupRef: "<value>",
consumerRef: "<value>",
provider: "salesforce",
}, {
serverURL: "https://api.withampersand.com/v1",
});
console.log(result);
}
run();
Custom HTTP Client
The TypeScript SDK makes API calls using an HTTPClient
that wraps the native
Fetch API. This
client is a thin wrapper around fetch
and provides the ability to attach hooks
around the request lifecycle that can be used to modify the request or handle
errors and response.
The HTTPClient
constructor takes an optional fetcher
argument that can be
used to integrate a third-party HTTP client or when writing tests to mock out
the HTTP client and feed in fixtures.
The following example shows how to use the "beforeRequest"
hook to to add a
custom header and a timeout to requests and how to use the "requestError"
hook
to log errors:
import { SDK } from "@amp-labs/sdk-node";
import { HTTPClient } from "@amp-labs/sdk-node/lib/http";
const httpClient = new HTTPClient({
fetcher: (request) => {
return fetch(request);
}
});
httpClient.addHook("beforeRequest", (request) => {
const nextRequest = new Request(request, {
signal: request.signal || AbortSignal.timeout(5000)
});
nextRequest.headers.set("x-custom-header", "custom value");
return nextRequest;
});
httpClient.addHook("requestError", (error, request) => {
console.group("Request Error");
console.log("Reason:", `${error}`);
console.log("Endpoint:", `${request.method} ${request.url}`);
console.groupEnd();
});
const sdk = new SDK({ httpClient });
Debugging
You can setup your SDK to emit debug logs for SDK requests and responses.
You can pass a logger that matches console
's interface as an SDK option.
[!WARNING]
Beware that debug logging will reveal secrets, like API tokens in headers, in log messages printed to a console or files. It's recommended to use this feature only during local development and not in production.
import { SDK } from "@amp-labs/sdk-node";
const sdk = new SDK({ debugLogger: console });
Development
Maturity
This SDK is in beta, and there may be breaking changes between versions without a major version update. Therefore, we recommend pinning usage
to a specific package version. This way, you can install the same version each time without breaking changes unless you are intentionally
looking for the latest version.
Contributions
While we value open-source contributions to this SDK, this library is generated programmatically. Any manual changes added to internal files will be overwritten on the next generation.
We look forward to hearing your feedback. Feel free to open a PR or an issue with a proof of concept and we'll do our best to include it in a future release.