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AGENTS.md

Notes for AI coding agents working with the DocSpring Go SDK (github.com/docspring/docspring-go/v4): integrating it into an app, or working in this repository.

This code is generated

Every file here is generated from DocSpring's OpenAPI spec by DocSpring's fork of OpenAPI Generator, and each release replaces all of it. Don't patch an installed copy: the next release overwrites the change. Issues and pull requests are welcome at https://github.com/DocSpring/docspring-go (or email support@docspring.com), and DocSpring makes the fix in the generator so that every release keeps it.

Where to look

Set up

  • Credentials come from DOCSPRING_TOKEN_ID and DOCSPRING_TOKEN_SECRET (an API token from https://app.docspring.com/api_tokens). Keep them in the environment or a secret store, never in code. An account in the EU region also needs DOCSPRING_REGION=EU.
  • Call DocSpring from your server. The token secret gives full access to the account, so it must never reach a browser or a mobile app. Signers use signing links or the embedded signing form instead (see Signature requests).
  • TestAuthentication checks the credentials.

Generate PDFs

  • Read a template's data shape before writing the request: GetTemplateSchema returns the JSON Schema of its submission data (its field names and types), and GetTemplateModelCode generates typed code for it. The keys of data are the template's field names. Date fields take YYYY-MM-DD.
  • Template IDs look like tpl_... and submission IDs like sub_.... Store the submission ID with your own record.
  • Pass test: true while you build: test PDFs are free and watermarked. Live PDFs use credits.
  • A submission uses the template's latest published version (its draft when nothing has been published yet). Pass version (draft, 1.2.0, or 1 for the latest 1.x.x) to use another one.
  • CreateSubmission waits for the PDF, for up to 95 seconds, and returns the submission in its final state: check its state (processed, or a failure state with an error_message). If the PDF takes longer, the call fails with a 504 polling_timeout error that has the submission's ID. The submission exists and is still being made, so don't send the request again (that makes a second one): get it with GetSubmission until its state isn't pending. For slow templates or many PDFs, set wait to false and use webhooks (https://docspring.com/docs/api-guide/synchronous-requests/). CreateSubmissionBatch sends up to 50 submissions in one request.
  • files.pdf.download_url is a temporary link. Keep the submission ID (or files.pdf.permanent_url, which needs your API token) and get a fresh link when someone downloads the PDF.
  • Submission data is often personal data: don't log request or response bodies. expires_in deletes a submission's PDF and data that many seconds after it's created, and ExpireSubmission deletes them now.

Errors

  • Execute() returns an error. For an error response it's a *client.GenericOpenAPIError: Body() is the raw body and Model() the decoded error, and the *http.Response that Execute() also returns has the status code.
  • Every error response has one body: {"error": {"code", "message", "details", "request_id"}}. Branch on code, not on the message. Each detail has a pointer to the request body value it's about, or the query parameter.
  • 422 invalid_data: the data doesn't match the template. The submission is saved anyway, as invalid_data, and the error has its submission_id.
  • 402 insufficient_credits: the submission is saved and is made automatically once the account has credits. Don't send it again (https://docspring.com/docs/api-guide/credits-and-rate-limits/).
  • 429 rate_limited: wait for the seconds in the Retry-After header, then retry.
  • Requests are checked against the API's request schemas before they're sent. For a request the API would reject, Execute() returns a *client.ValidationError without sending it: its Details have a Code, a Message and a Pointer into the body (or a Parameter). Set SkipRequestValidation on the Configuration to turn the check off.

Webhooks

  • Webhooks tell your server when a submission is processed or fails, instead of polling (https://docspring.com/docs/webhooks/overview/). A webhook created with API v2 sends events in API v2's format (version 4).
  • Verify each request's X-DocSpring-Signature header before acting on it: an HMAC-SHA256 of {t}.{raw body} with the webhook's signing secret, computed over the raw body exactly as received (https://docspring.com/docs/webhooks/verifying-signatures/).
  • No webhook is sent when a submission starts waiting for credits.

Signature requests

  • To have people fill in fields and sign before the PDF is made, create the submission with signature_requests. Each one has the fields its signer fills in (a field belongs to one signature request), and their name and email. The PDF is made when every signer has finished (https://docspring.com/docs/api-guide/create-signature-requests/).
  • Send a signer to the signature_request_url of a token from CreateSignatureRequestToken. An api token's link opens the form for 24 hours and an email token's for 7 days (expires_at), so create a new token when a signer comes back later.
  • To show the signing form on your own site, use Signature Requests JS, and add the site's domain to the template's Embed Domains (https://docspring.com/docs/guides/embedded-forms/embedded-signature-requests/).

Responses

  • List methods return data and next_cursor: pass next_cursor as cursor to get the next page.
  • Responses can be newer than this SDK, because DocSpring adds fields and enum values to API v2 without a new version. The model keeps a response field added to the API after this release in its AdditionalProperties map. The objects defined inside a model, such as a template's document, leave it out. Enum values in responses are strings, so a value added after this release comes back as it is: handle values you don't recognize.
  • Optional fields are pointers. Set them with the helpers client.PtrString, client.PtrInt32, client.PtrBool and so on, and read them with the model's getters (GetDownloadUrl()).