x402-base-facilitator/src/controllers/rest-api/verify/controller.js

/*
  REST API Controller library for the /verify route
*/

class VerifyRESTControllerLib {
  constructor (localConfig = {}) {
    // Dependency Injection.
    this.adapters = localConfig.adapters
    if (!this.adapters) {
      throw new Error(
        'Instance of Adapters library required when instantiating /verify REST Controller.'
      )
    }
    this.useCases = localConfig.useCases
    if (!this.useCases) {
      throw new Error(
        'Instance of Use Cases library required when instantifying /verify REST Controller.'
      )
    }

    this.verify = this.verify.bind(this)
    this.handleError = this.handleError.bind(this)
  }

  async verify (ctx) {
    try {
      const inputObj = ctx.request.body

      const result = await this.useCases.verify.verify(inputObj)

      ctx.body = result
    } catch (err) {
      // console.log(`err.message: ${err.message}`)
      // console.log('err: ', err)
      // ctx.throw(422, err.message)
      this.handleError(ctx, err)
    }
  }

  // DRY error handler
  handleError (ctx, err) {
    // If an HTTP status is specified by the buisiness logic, use that.
    if (err.status) {
      if (err.message) {
        ctx.throw(err.status, err.message)
      } else {
        ctx.throw(err.status)
      }
    } else {
      // By default use a 422 error if the HTTP status is not specified.
      ctx.throw(422, err.message)
    }
  }
}

export default VerifyRESTControllerLib